branchiomere

An embryonic segment from which a branchial arch is developed. [G. branchia, gill, + meros, part]

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bran·chio·mere 'braŋ-kē-ə-.mi(ə)r n a branchial segment esp one of the metameres indicated by the branchial arches and clefts of the embryo of air-breathing vertebrates

bran·chio·mer·ic .braŋ-kē-ə-'mer-ik adj

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bran·chio·mere (brangґke-o-mēr″) a segment of the splanchnic mesoderm from which the pharyngeal or branchial arches are developed.